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dt-bindings: PCI: designware: Add support for EP in DesignWare driver

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Add device tree binding documentation for the EP in PCIe DesignWare driver.

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
[lorenzo.pieralisi@arm.com: updated commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Gustavo Pimentel 2018-05-15 15:41:43 +01:00 committed by Lorenzo Pieralisi
parent 1d906b2207
commit 71918e24cb
1 changed files with 12 additions and 0 deletions
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12
Documentation/devicetree/bindings/pci/designware-pcie.txt
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@ -3,6 +3,7 @@
Required properties:
- compatible:
"snps,dw-pcie" for RC mode;
"snps,dw-pcie-ep" for EP mode;
- reg: Should contain the configuration address space.
- reg-names: Must be "config" for the PCIe configuration space.
(The old way of getting the configuration address space from "ranges"
@ -56,3 +57,14 @@ Example configuration:
#interrupt-cells = <1>;
num-lanes = <1>;
};
or
pcie: pcie@dfc00000 {
compatible = "snps,dw-pcie-ep";
reg = <0xdfc00000 0x0001000>, /* IP registers 1 */
<0xdfc01000 0x0001000>, /* IP registers 2 */
<0xd0000000 0x2000000>; /* Configuration space */
reg-names = "dbi", "dbi2", "addr_space";
num-ib-windows = <6>;
num-ob-windows = <2>;
num-lanes = <1>;
};